#-*- codeing = utf-8 -*-
#@Time : 2020/11/22 22:09
#@Author : 阳某
#@File : python定时程序.py
#@Software : PyCharm

import os
import time
def print_ts(message):
    print ("[%s] %s"%(time.strftime("%Y-%m-%d %H:%M:%S", time.localtime()), message))
def run(interval, command):
    print_ts("-"*100)
    print_ts("Command %s"%command)
    print_ts("Starting every %s seconds."%interval)
    print_ts("-"*100)
    while True:
        try:
            # sleep for the remaining seconds of interval
            time_remaining = interval-time.time()%interval
            print_ts("Sleeping until %s (%s seconds)..."%((time.ctime(time.time()+time_remaining)), time_remaining))
            time.sleep(time_remaining)
            print_ts("Starting command.")
            # execute the command
            status = os.system(command)
            print_ts("-"*100)
            print_ts("Command status = %s."%status)
        except Exception as e:
            print(e)
if __name__=="__main__":
    interval = 5
    command = r"ls"
    run(interval, command)